We know that one of the biggest challenges during plug-in development is matching COYO's user interface design and user experience. To fully create the illusion that a plugin is part of COYO, it must completely blend in.
To ease this task we have created a new design guideline for plug-ins. It summarizes the most important aspects of plug-in styling and coloring. You can find it at here:
Please note, that even though this is published as part of the upcoming v36.x release, this guideline already applies to prior versions of COYO and can help you build a plug-in for earlier COYO versions as well.